Science Chapter 3

Front 1

What is erosion?

Back 1

natural forces move weathered rock and soil

Front 2

Agents of erosion

Back 2

gravity, waves, running water, wind, glaciers

Front 3

The material moved by erosion

Back 3

sediment

Front 4

Where does deposition occur

Back 4

where agents of erosion lay down settlement

Front 5

what is true about erosion
a) it pulls things toward earth
b) it causes landslides
c) causes mass movement
d) it is an agent of erosion

Back 5

a, b, c, d

Front 6

The most destruction kind of mass movement is creep

true or false

Back 6

false

Front 7

mud flows and slump are especially likely in soils high in clay

true or false

Back 7

true

Front 8

mass movement includes:

Back 8

landslides, mudflows, slump and creep

Front 9

explain the relationship among landslides, mudflows, slump and creep

Back 9

types of mass movement

Front 10

landslide

Back 10

rock and soil slide quickly down a steep slope

Front 11

mudflow

Back 11

a mixture of water, rock and soil move rapidly downhill

Front 12

creep

Back 12

rock and soil move very slowly downhill

Front 13

slump

Back 13

rock and soil suddenly slip down a slope all at once

Front 14

water running downhill is a major agent of:

Back 14

erosion

Front 15

water that moves over earth's surface when it rains is called:

Back 15

runoff

Front 16

other than how people use the land, list 4 factors that determine the amount of runoff in an area

Back 16

soil type
land shape
presence of vegetation
amount of rain

Front 17

more runoff generally means less erosion

true or false

Back 17

false

Front 18

rill

Back 18

water moving in a tiny groove in soil after a rainstorm

Front 19

gully

Back 19

water moving in a channel after a rainstorm

Front 20

stream

Back 20

water continually flowing down a slope through its own channel

Front 21

river

Back 21

water flowing downhill in a large channel

Front 22

which form of moving water causes the greatest changes in the shape of the land

Back 22

a river - because its the largest form of energy

Front 23

unlike gullys, streams rarely:

Back 23

dry up

Front 24

a large stream is also called:

Back 24

river

Front 25

how do v-shaped valleys form

Back 25

from river erosion

Front 26

when does a river develop meanders

Back 26

flat plains with easily eroded material

Front 27

meander that has been cut off from a river is called

Back 27

an oxbow lake

Front 28

list 2 landforms created from deposits by rivers

Back 28

alluvial fan

delta

Front 29

what is a alluvial fan

Back 29

wide sloping fan shaped deposit funnel where a stream leaves a mountain range

Front 30

sediments deposited where a river flows into an ocean or lake form a:

Back 30

delta